Note 6 - Prepaid Expenses and Other Current Assets (Tables)

3 Months Ended

Mar. 31, 2013

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]

	March 31, 2013		December 31, 2012
Prepaid expenses	$	664	$	529
Interest receivable		35		36
Other receivables		39		16
	$	738	$	581